Experimental investigation of guiding mechanisms in large area VCSELs

L. Raddatz, I. H. White, M. C. Nowell, M. R.T. Tan, A. G. Weber, S. Y. Wang

Research output: Contribution to journalConference articlepeer-review


This paper has demonstrated a robust and simple technique to spatially resolve light emission from a vertical cavity surface emitting laser (VCSEL). The technique allows the mode structure, carrier density, and net cavity loss to be mapped. The measurements allow ready assessment of optical guiding in the structure. It is found that in larger area devices with low ohmic heating the guiding is dominated by free carrier effects.

Original languageEnglish
Pages (from-to)439-440
Number of pages2
JournalConference Proceedings - Lasers and Electro-Optics Society Annual Meeting-LEOS
Publication statusPublished - 1 Dec 1995
EventProceedings of the 1995 8th Annual Meeting of the IEEE Lasers and Electro-Optics Society. Part 1 (of 2) - San Francisco, CA, USA
Duration: 30 Oct 19952 Nov 1995

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering


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